Cypress Truck Lines Triples Deployment of Aether MobileMax.

Business Editors/High-Tech Writers

OWINGS MILLS, Md.--(BUSINESS WIRE)--Aug. 5, 2002

Aether Systems, Inc. (Nasdaq:AETH), a leading provider of wireless and mobile data solutions, today announced that Cypress Truck Lines, a leading flatbed motor carrier and one of the nation's largest gypsum haulers, will deploy an additional 250 units of Aether MobileMax(TM), the industry's only multi-mode wireless communications system. The Jacksonville-based fleet decided to significantly expand their use of Aether's technology to enhance their overall fleet management capabilities and extend to the majority of their fleet the communication, productivity, and customer service improvements MobileMax delivers. This expansion brings the total number of units deployed at Cypress to 400.

"MobileMax has served our fleet well for more than three years and has proven an effective and reliable system that delivers results," said Pete Peterson, Senior Vice President, Cypress Truck Lines. "As we look to take our fleet management to the next level we're certain that MobileMax will play an essential role in enhancing communications and improving operations across our fleet."

"We're pleased that Cypress Truck Lines has chosen to increase its deployment of MobileMax and is committed to Aether's technology for its wireless needs," said Frank Briganti, President, Aether Transportation and Logistics Division. "Cypress is among a growing base of existing Aether customers that are expressing confidence that MobileMax is the best solution to help them increase their fleet efficiency and improve their business operations."

Aether MobileMax is the only solution to use a multi-mode system, which automatically switches between land-based and satellite communications without driver or dispatcher intervention to ensure complete coverage and more cost-efficient communications. The MobileMax system transmits dispatch and data messages and GPS position reports, and provides data on state-line crossings, vehicle fault codes, and driver performance. Hundreds of fleets have improved their operations, streamlined their processes, and improved their customer service by deploying Aether's MobileMax multi-mode solution.

About Aether Systems, Inc.

Aether Systems delivers wireless and mobile data solutions that make people more productive and their organizations more profitable. Aether's products and services are built on Aether Fusion, the company's standards-based platform that allows for secure, reliable extension of critical information to virtually any wireless or mobile environment. Return on investment in Aether solutions comes from a unique combination of strengths - quick access to multiple back-end information sources, workflow that is optimized for specific industries, and turnkey deployment services and professional support. Backed by years of in-market expertise, Aether is making it possible for thousands of businesses and government agencies to unleash the power of the mobile workforce. For more information, please visit www.aethersystems.com

This press release includes forward-looking statements based on current expectations and projections about future events. These forward-looking statements are subject to a number of risks, uncertainties and assumptions about Aether that could cause actual results to differ materially from those in such forward-looking statements. Potential risks and uncertainties include, but are not limited to, the ability of Aether and Cypress Truck Lines to successfully develop the products and services described in this release. These risks and other risk factors are described in Aether's report on Form 10-K with respect to the fiscal year ending December 31, 2001 and other documents filed with the Securities and Exchange Commission. Aether undertakes no obligation to update the forward-looking statements contained in this press release.